Depending on the company's Guidance, you may then be recommended to work with either a duration of bell wire / twin cable to function an interlink cable, or 3-core and earth (which will likely be adopted in more recent installations). As North The united states’s #one residence fire basic safety https://wireless-fire-alarms67788.blog2learn.com/82999681/5-tips-about-wireless-fire-alarm-systems-you-can-use-today